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The generally accepted parts of modern cell theory include: All known living things are made up of one or more cells [13] All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms. [14] The activity of an organism depends on the total activity of independent ...
He is best known for his work on the Casimir effect, which describes the attractive force between two uncharged plates in a vacuum due to quantum fluctuations of the electromagnetic field. Hendrik Casimir is also known for his research on the two-fluid model of superconductors (together with C. J. Gorter [ 2 ] ) in 1934.
He came to the conclusion that electric charge was a relation between two or more bodies, because he could not charge one body without having an opposite charge in another body. [45] In 1838, Faraday also put forth a theoretical explanation of electric force, while expressing neutrality about whether it originates from one, two, or no fluids. [46]
Interpersonal attraction, as a part of social psychology, is the study of the attraction between people which leads to the development of platonic or romantic relationships. It is distinct from perceptions such as physical attractiveness , and involves views of what is and what is not considered beautiful or attractive.
a is the distance between the two plates; In Casimir's original derivation, [20] a moveable conductive plate is positioned at a short distance a from one of two widely separated plates (distance L apart). The zero-point energy on both sides of the plate is considered.
The first two conflicts with observations above were explained by Einstein's theory of general relativity, in which gravitation is a manifestation of curved spacetime instead of being due to a force propagated between bodies. In Einstein's theory, energy and momentum distort spacetime in their vicinity, and other particles move in trajectories ...
This theory is also known as a theory of cellularization. It is a theory to explain the origin of the Metazoa. The idea was proposed by Hadži (1953) [4] and Hanson (1977). [13] This cellularization (syncytial) theory states that metazoans evolved from a unicellular ciliate with multiple nuclei that went through cellularization. Firstly, the ...
The theory was used to critique a previously asserted evolutionary theory of romantic love proposed by Helen Fisher, [3] that romantic love is a form of courtship attraction. [6] Bode's theory explains not only one process in the emergence and subsequent evolution of romantic love, but also proposed a new model of the mechanisms of romantic ...